<template>
  <div :class="className" :style="{height:height,width:width}" />
</template>

<script>
import echarts from 'echarts'
require('echarts/theme/macarons') // echarts theme
import { debounce } from '@/utils'

export default {
  props: {
    className: {
      type: String,
      default: 'chart'
    },
    width: {
      type: String,
      default: '100%'
    },
    height: {
      type: String,
      default: '480px'
    },
    ringData: {
      type: Object,
      required: true
    },
    showTitle: {
      type: Boolean,
      default: false
    }
  },
  data() {
    return {
      chart: null
    }
  },
  mounted() {
    this.initChart()
    this.__resizeHandler = debounce(() => {
      if (this.chart) {
        this.chart.resize()
      }
    }, 100)
    window.addEventListener('resize', this.__resizeHandler)
  },
  beforeDestroy() {
    if (!this.chart) {
      return
    }
    window.removeEventListener('resize', this.__resizeHandler)
    this.chart.dispose()
    this.chart = null
  },
  methods: {
    initChart() {
      this.chart = echarts.init(this.$el, 'macarons')
      this.chart.setOption({
        title: {
          text: this.showTitle && this.ringData.title ? this.ringData.title : ''
        },
        tooltip: {
          trigger: 'item',
          formatter: '{b} : {c}人 ({d}%)'
        },
        legend: {
          type: 'scroll',
          left: 'center',
          right: '20',
          data: this.ringData.name
        },
        series: [
          {
            name: '',
            type: 'pie',
            selectedMode: 'single',
            radius: [0, '30%'],

            label: {
              position: 'inner'
            },
            labelLine: {
              show: false
            },
            data: this.ringData.dataStatus
          },
          {
            name: '访问来源',
            type: 'pie',
            radius: ['40%', '55%'],
            data: this.ringData.dataAtten /* [
              { value: 335, name: '直达' },
              { value: 310, name: '邮件营销' },
              { value: 234, name: '联盟广告' },
              { value: 135, name: '视频广告' },
              { value: 1048, name: '百度' },
              { value: 251, name: '谷歌' },
              { value: 147, name: '必应' },
              { value: 102, name: '其他' }
            ]*/
          }
        ]
      }, true)
    }
  }
}
</script>

<style>

</style>
